December 9, 2013 - Metso introduces SDO to optimize sludge dewatering at wastewater treatment plants. SDO (Sludge Dewatering Optimizer) enables wastewater plant operators to operate dewatering equipment with accurate and efficient continuous optimization. Through optimization with Metso SDO, they can improve sludge dewatering performance by up to 50%, reduce chemicals consumption significantly and reach the best possible efficiency. A higher solids content of concentrated sludge results in higher thermal energy in the subsequent incineration process, or alternatively reduces transportation costs when shipping to a landfill, resulting in improved energy efficiency and environmental sustainability.
Automating the dewatering process also reduces laboratory sampling, produces 24/7 real-time data and decreases the continuous need to monitor the process. Metso SDO is especially suitable for municipal and industrial wastewater treatment processes, for example in the pulp, paper and chemical industries, to optimize sludge dewatering. A unique feature of SDO is the control, which utilizes Metso measurements and optimizes the sludge dewatering unit performance. An advanced control application is essential for optimization since sludge dewatering unit control is a non-linear process system. Metso SDO can be integrated into most automation systems via the Metso DNA automation system.
It can be installed on one sludge dewatering unit or an entire sludge dewatering unit installation. The optimizing solution is modular and can be used either with Metso Low Solids Measurement (Metso LS), which is based on LED and laser technology, or Metso Total Solids Transmitter (Metso TS), which is based on microwave technology.